Baseline Shift

Definition: A baseline shift is an artifact in the signal that specifically refers to a rapid change in the amplitude of the signal, typically taking a few seconds or less, which results in a discontinuity in the signal. For example, when an optode moves relative to the scalp and fails to return to its original position, this will create a baseline shift in the signal.

Alternative definition:

Synonym: shift artifacts, step-like artifacts

References: https://doi.org/10.1109/EMBC46164.2021.9631014

https://doi.org/10.3389/fnins.2012.00147

https://doi.org/10.3390/brainsci11050606

Related terms: artifact, spikes, motion artifacts, noise, baseline drift